1. V E (a) Calculate is the change in PE when an electron moves through an electric field, E = 50 N/C, directed to the right, a distance of 6 m to the left. Potential Energy, APE: J (b) Is mechanical energy of the electron conserved during the motion? Yes No (c) If the electron starts from rest what is its speed, vf, after traveling 6 m? The mass of the electron is -31 me =9.1×10'kg. V = m/s

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Chapter7: Electric Potential
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1.
V
E
(a) Calculate is the change in PE when an electron moves through an electric field, E = 50 N/C,
directed to the right, a distance of 6 m to the left.
Potential Energy, APE:
J
(b) Is mechanical energy of the electron conserved during the motion?
Yes v
No
(c) If the electron starts from rest what is its speed, vf, after
eling 6 m? The mass of the electron is
-31
me = 9.1x10'kg.
V; =
m/s
Transcribed Image Text:1. V E (a) Calculate is the change in PE when an electron moves through an electric field, E = 50 N/C, directed to the right, a distance of 6 m to the left. Potential Energy, APE: J (b) Is mechanical energy of the electron conserved during the motion? Yes v No (c) If the electron starts from rest what is its speed, vf, after eling 6 m? The mass of the electron is -31 me = 9.1x10'kg. V; = m/s
Expert Solution
Potential energy change

PE change = q(E×d)

PE change = -1.6 × 10-19 (50×6)

PE change = -4.8 × 10-17 J (a)

The mechanical energy remains conserved as there are no losses in the process (b)

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